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CHARLES J. NEGER, 0F PHILADELPHIA, PENNSYLVANIA.

Letters .Patent No. 98,399, dated December 28, 1869.

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. m The Schedule referred to in these Letters Patent and making part of the same I, CHARLES J. NEeER, of Philadelphia, county of Philadelphia, State of Pennsylvania, have invented an Improvement in Ventilating and Heating Buildings, of which the following is a speciiicatio'n.

Nature and Object of the Invention.

My invention consists inthe combination, with a stove, of a curved pipe or due, which"may be connected with fines communicating with an apartment or apartments, so as to maintain a constant circula- Vtion of air within the same.

Description of the Accompanying Drawing.

Figure l is a sectional view of a vportion of a building, illustrating my improved method of heating and Ventilating the same;

Figure 2, a sectional plan view, on the line 1-2, Iig. 1; and

Figure 3, a view of a modification of my invention.

Gene/ral Description.

A represents one of the walls of a buildingi B and B', two floors of the same; and C and C', two rooms or apartments, the upper one ot which it is proposed to heat and ventilate according to my invention.

In the lower room C', is a stove, D, of ordinary construction, at the back of which is arranged a heatingdrum, F, divided into two compartments, a and a', by a partition, b, forming a curved due, which extends almost but not quite to the bottom of the drur'n.

A pipe, H, communicates with the top of the-compartmentu, which is the most remote from thestove, and projects upward into Athe room C, terminating within the latter at a point close tol the door, and a pipe, H', which communicates with the chamber a' of the heating-drum, is continued upward nearlyio the top of the room C, terminating at its upper end in a deiiecter, f.

Instead ofthe exposed pipes H and H', flues might be employed built up in the wall A, and communicating with the interior of the' room at'points adjacent 'to the ceiling and door, through suitable registers.

Onlighting'a re in the stove D, the air within the compartment a of the drumy becomes quickly heated, and rises through the pipeH', from the upper end of which it is discharged into the room 0. This instantly produces a partial vacuum. within the heating-drum, -so that cold air from the bottomiot' the room passes downward through the'pipe H into the said drum, to be in turn heated, and to rise throughl the pipe H', a constant' circulation in the direction of the arrows, g. l, being thus maintained through the pipes and heating-drum, which has -a tendency to rapidly heat the room G, and to maintain nearly an equal temperature throughout the same.

It is not necessary that the stove andheating-drum should be arranged in the apartment immediately beneath that whichis to be heated and ventilated, as shown in the drawing, as they might be placed iu the cellar, while the pipes H and H could 4be continued upward through several stories to any of theupper apartments of the building.

It is n'ot vabsolutely necessary that the drum F Y should be arranged at the back ofthe stove, although I-prefer that the latter should be used; vand in some cases, where it is desired to merely ventilate o'r to maintain an equal' Atemperature of air throughout a room, without heating the same, the stove Vand drum can be dispensed with entirely, the pipes or iiues H and H being merely connected at their lower ends, as shown in fig. 3.

.In this case, the cold air from the bottom of a room, by' descending throu Yh the pipe or ue H, will force the more rareiied air from the rupper portion of theA pipe H into the room, and thus maintain a continuous circulation sntlvicient to equalize the temperature of the room, although this circulation will not be as rapid as though the heating-drum were em.- ployed.

Oltqim.

' The combination with a stove or heater, of a curved due, adapted for being connected to lues or pipes H H', as herein s et forth, for the purpose specified.

In testimony whereof, I have signed my name. to

this specification, inthe presence of twov subscribing witnesses.

' CHARLES J. NEGER. l Witnesses: p

LoUIs BosWELL, HARRY SMITH. 

